[Bug 100233] New: [SKL] [drm:intel_cpu_fifo_underrun_irq_handler [i915]]*ERROR* CPU pipe x FIFO underrun

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=100233

            Bug ID: 100233
           Summary: [SKL] [drm:intel_cpu_fifo_underrun_irq_handler
                    [i915]]*ERROR* CPU pipe x FIFO underrun
           Product: DRI
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: ramix.ben.hassine at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org
     i915 platform: SKL
     i915 features: display/atomic

Created attachment 130266
  --> https://bugs.freedesktop.org/attachment.cgi?id=130266&action=edit
dmesg

we have FIFO underrun error when making some rotation with 3 monitor connected

Setup:
setup:
=========
Platform SKL Gigabyte
CPU: Intel(R) Core(TM) i5-6600 CPU @ 3.30GHz (family 6, model 94, stepping 3)
GPU: Intel® HD Graphics 530 - Intel Corporation Sky Lake Integrated Graphics
(rev 06)
Motherboard version: H170N-WIFI-CF
Memory: 2x 4GB Kingston 9905622-055.A00G

Software
===========
Bios: F3
Linux distribution: Ubuntu 16.04 64 bits
DMC 1.26 from
https://01.org/sites/default/files/downloads/intelr-graphics-linux/skldmcver126.tar_1.bz2
GUC 6.1 from
https://01.org/sites/default/files/downloads/intelr-graphics-linux/sklgucver61.tar.bz2
kernel:drm-tip: 2017y-03m-15d-21h-47m-56s UTC integration manifest
  commit: d7cb114e1327b50c609ee6e67122cc0293ea515f
  author: Chris Wilson <chris at chris-wilson.co.uk>
  authored_date: Wed Mar 15 21:48:18 2017 +0000
drm:libdrm-2.4.75-14-g19c4cfc from  git://git.freedesktop.org/git/mesa/drm=
mesa:mesa-17.0.0 from git://git.freedesktop.org/git/mesa/mesa
cairo:1.15.4 from  git://anongit.freedesktop.org/cairo
xorg-server-macros:util-macros-1.19.1-2-g39f07f7 from  
git://git.freedesktop.org/git/xorg/util/macros
xserver:xorg-server-1.19.0-133-g386fbbe from
git://git.freedesktop.org/git/xorg/xserver
xf86-video-intel: 2.99.917-766-gbe913a3 from
git://git.freedesktop.org/git/xorg/driver/xf86-video-intel
libva: libva-1.7.3.pre1-85-gefc164d
vaapi-intel-driver:1.7.3-343-gef83d40 
waffle:debian/1.5.2-3-202-g03d5566


Steps:
===== 
xrandr --output <output> --rotate normal,inverted,left,right

dmesg:
======
[drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO
underrun
[drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe C FIFO
underrun

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